The structures were built by people who inhabited the Americas for over 12,000 years.
Scientists have found out that the Jungle was subjected to human impact even before Europeans arrived in America.
This statement was made by scientists who studied 0.08% of the Amazon with the help of LiDAR technology, according to the material published in the journal Science.
As a result, they were found in the depths of the Jungle 24 archaeological sites resembling the ruins of an ancient city. It is located near the Shingu River and include roads with embankments, artificial ponds, dams, ditches, cemeteries, as well as other structures made by people.
Scientists noted that the indigenous population, who lived here for 12,000 years, used advanced technologies during construction, allowing them to coexist with virgin forests without damaging them.
Scientists are confident that in the depths of the Jungle hides many more such monuments.
Earlier archaeologists found in Bulgaria a 700-year-old coin with the image of Jesus.